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Conference Paper  January 1, 2015

Re-Ranking by Multi-Feature Fusion with Diffusion for Image Retrieval

SRI Authors Bogdan Matei

Citation

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Yang, F., Matei, B., & Davis, L. S. (2015, 5-9 January). Re-ranking by multi-feature fusion with diffusion for image retrieval. Paper presented at the IEEE Winter Conference on Applications of Computer Vision (WACV’15), Waikoloa Beach, HI.

Abstract

We present a re-ranking algorithm for image retrieval by fusing multi-feature information. We utilize pairwise similarity scores between images to exploit the underlying relationships among images. The initial ranked list for a query from each feature is represented as an undirected graph, where edge strength comes from feature-specific image similarity. Graphs from multiple features are combined by a mixture Markov model. In addition, we utilize a probabilistic model based on the statistics of similarity scores of similar and dissimilar image pairs to determine the weight for each graph. The weight for a feature is queryspecific, where the ranked lists of different queries receive different weights. Our approach for calculating weights is data-driven and does not require any learning. A diffusion process is then applied to the fused graph to reduce noise and achieve better retrieval performance. Experiments demonstrate that our approach significantly improves performance over baseline methods and outperforms many state-of-the-art retrieval methods.

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